Hi,
My son has a '90 Crown Vic with a 5.0 engine. He has been complaining about it turning over a while, like 2 to 3 seconds, before the engine starts. I can't hear the fuel pump kicking on as my hearing is pretty much shot. I did turn the key on all the way without turning it over and put a small screwdriver into the Schrader valve and a tiny bit of gas came out on the rag and the tiny flow stopped almost immediately. I started the car and tapped the Schrader valve with a rag covering it and it definitely had pressure! It runs great, mileage is decent, and no codes. Anyone know why there would be no pressure with it not running yet obviously pressure when it is running? Is it losing the fuel back to the tank somehow? I did check the fuel regulator vacuum line and there is vacuum and no gas in it or the regulator. It's almost like a mechanical fuel pump from years ago. I was just out for a drive and it runs great, has good power with no missing or hesitation. I did a full tune up on this boat last fall. New plugs, wires, distributor cap, fuel filter, and air filter, although I don't think any of that would have anything to do with the problem I'm describing. Anyone have any idea what's going on with it? Thanks
Jon
My son has a '90 Crown Vic with a 5.0 engine. He has been complaining about it turning over a while, like 2 to 3 seconds, before the engine starts. I can't hear the fuel pump kicking on as my hearing is pretty much shot. I did turn the key on all the way without turning it over and put a small screwdriver into the Schrader valve and a tiny bit of gas came out on the rag and the tiny flow stopped almost immediately. I started the car and tapped the Schrader valve with a rag covering it and it definitely had pressure! It runs great, mileage is decent, and no codes. Anyone know why there would be no pressure with it not running yet obviously pressure when it is running? Is it losing the fuel back to the tank somehow? I did check the fuel regulator vacuum line and there is vacuum and no gas in it or the regulator. It's almost like a mechanical fuel pump from years ago. I was just out for a drive and it runs great, has good power with no missing or hesitation. I did a full tune up on this boat last fall. New plugs, wires, distributor cap, fuel filter, and air filter, although I don't think any of that would have anything to do with the problem I'm describing. Anyone have any idea what's going on with it? Thanks
Jon
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